Much of the NBA spent the evening with concerns about Celtics swingman Mickael Pietrus, who suffered a head injury during tonight's game with the 76ers and left the arena in an ambulance. It originally appeared Pietrus would spend the night in a hospital, as ESPN's Chris Forsberg and others reported, but apparently his injury, a concussion, will allow him to return home for the night, Forsberg tweets. Here's more from around the Association:

Grizzlies owner Michael Heisley is out of the running to buy the Los Angeles Dodgers, but separate groups that include Magic Johnson and Nuggets owner Stan Kroenke remain in the hunt with a decision looming as soon as next week, according to Bill Shaikin of the Los Angeles Times.

Despite a loss to the Raptors tonight, the Knicks have been playing markedly better since Mike Woodson took over as coach, but that doesn't mean the team had quit on former coach Mike D'Antoni, Tyson Chandler says, according to Newsday's Al Iannazzone.

Chris Tomasson of Fox Sports Florida tweets that the Pistons have offered retiring Ben Wallace a job for when he hangs up his sneakers, but Wallace is undecided on whether he'll take it.